Surgical arm



1. A surgical instrument, specifically a surgical arm

1.1 is a perspective view of a surgical arm showing the claimed design;

1.2 is a front view thereof;

1.3 is a back view thereof;

1.4 is a left side view thereof;

1.5 is a right side view thereof;

1.6 is a top view thereof; and

1.7 is a bottom view thereof. 

CLAIM The ornamental design for a surgical arm, as shown and described. 